Pith Number

pith:33QH5XSX

pith:2004:33QH5XSX67ZSKSICBS246HPDQP

not attested not anchored not stored refs pending

The asymptotics of Wilkinson's shift iteration

Carlos Tomei, Nicolau C. Saldanha, Ricardo S. Leite

arxiv:math/0412493 v2 · 2004-12-27 · math.NA · cs.NA · math.SP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{33QH5XSX67ZSKSICBS246HPDQP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-06-03T22:06:16.114297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dee07ede57f7f32549020cb5cf1de383f703a32e46c31404bea884eead26eb16

Aliases

arxiv: math/0412493 · arxiv_version: math/0412493v2 · doi: 10.48550/arxiv.math/0412493 · pith_short_12: 33QH5XSX67ZS · pith_short_16: 33QH5XSX67ZSKSIC · pith_short_8: 33QH5XSX

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/33QH5XSX67ZSKSICBS246HPDQP \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: dee07ede57f7f32549020cb5cf1de383f703a32e46c31404bea884eead26eb16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2b62e997b4fc3511be9c06702f6b1f3a2e87d2a7d45b58bc1fa8c563ba65d24",
    "cross_cats_sorted": [
      "cs.NA",
      "math.SP"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2004-12-27T16:26:09Z",
    "title_canon_sha256": "fac20bdc4c1beee21bb0232abdbcc4003db6121fe149b6181994b7f2af91c5a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0412493",
    "kind": "arxiv",
    "version": 2
  }
}